A Two-Dimensional Polyrotaxane with Large Cavities and Channels: A Novel Approach to Metal–Organic Open-Frameworks by Using Supramolecular Building Blocks

✍ Scribed by Eunsung Lee; Jaheon Kim; Jungseok Heo; Dongmok Whang; Kimoon Kim

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 212 KB
• Volume: 40
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/1521-3773(20010119)40:2<399::aid-anie399>3.0.co;2-w

✦ Synopsis

A seven-membered molecular necklace composed of six copper ions and six pseudorotaxane units behaves as a secondary building block in the formation of a two-dimensional polyrotaxane network with large voids. This novel metal-organic framework allows size-selective anion exchange as well as the exchange of coordinated ligands. Thus a new synthetic strategy has been identified for modular porous solids which utilizes large, rigid, interlocked supermolecules as primary or secondary building blocks.